FIRST DOWN. All progress in a football game is measured in yards. The offensive team tries to get as much yardage as it can to try and move closer to the opponent's end zone. Each time the offense gets the ball, it has four downs, or chances, in which to gain 10 yards.
The largest eagle species in the world is the Pithecophaga jefferyi or Philippine eagle. This species of eagle is on the critically endangered list due to the rapid decline in habitat, which is the tropical rainforest. Keep Learning.
Eagleâs size, dimensions. Eagles as other birds could be measured variously: in total length; body mass; wingspan; Philippine eagle (Pithecophaga jefferyi). Which is the largest eagle in the world? Different lifestyle needs among various eagles result in variable measurements from species to species. Many forest-dwelling eagles, including Harpy and Philippine eagles, have relatively short wingspans, a feature necessary for being able to maneuver in quick, short bursts through dense forested habitats.